Hot Dip Galvanized
The base material of hot dip galvanizing is cold rolled wide coil. Metal coating is performed by continuous hot dip galvanizing Sendzimir process.
1. Main Parameters
|
Coil |
Slit coil |
Sheet |
|
|
Thickness; h (mm) |
0.35–1.50 |
0.35–1.50 |
0.35–1.50 |
|
Width; b (mm) |
800–1 500* |
min. 19 mm |
800–1 500* |
|
Length; l (mm) |
— |
900–3 000 |
|
|
Inside diameter (mm) |
508 or 610** |
508 or 610** |
— |
|
Coil mass (t) |
2.5**–15 |
— |
|
|
Bundle mass (t) |
— |
max. 3 |
*In case of sheet thickness below 0.50 mm the width is subject to negotiation.
**Based on agreement
2. Steel Grades
Typical applications: extra protection against intensive environmental effects (e.g. air engineering, construction industrial sections and drainage systems).
Low carbon steels for cold forming
|
MSZ EN 10346 |
Re; (MPa) |
Rm; (MPa) |
A80; (%, min.) * |
|
DX51D |
— |
270–500 |
22 |
|
DX52D |
140–300 ** |
270–420 |
26 |
*This value is decreased by 2 units below 0.70 mm; and by further 2 units below 0.50 mm.
**This value is valid only for skin-pass rolled products (B and C surface qualities).
Structural steels
|
MSZ EN 10346 |
Re; (MPa min.) |
Rm; (MPa) |
A80; (%, min.)* |
|
S220GD |
220 |
300 |
20 |
|
S250GD |
250 |
330 |
19 |
|
S280GD |
280 |
360 |
18 |
|
S320GD |
320 |
390 |
17 |
|
S350GD |
350 |
420 |
16 |
* This value is decreased by 2 units below 0.70 mm; and by further 2 units below 0.50 mm.
The latest issued standards are applied for our products. The mechanical properties and chemical compositions in the tables are valid taking into account the supplementary specifications of the indicated standards.
3. Characteristics of Coating
| Mark Z | Mass (min. g/m2) (on two sides) |
Thickness (µm) (on one side) |
Coating Version N | Surface Quality A | Surface Treatment C * |
| Average of three specimens |
Normal Zinc flower | Normal Surface Quality |
Chemical passivation (Cr6+) | ||
| 275 | 275 | 20 | |||
| 250 | 250 | 18 | |||
| 200 | 200 | 15 | |||
| 150 | 150 | 10 | |||
| 100** | 100 | 7 |
*Without chemical passivation we do not take the responsibility of arising corrosion problems!
**No production below the thickness of 0.4 mm
4. Tolerances
Our galvanized products are manufactured according to EN 10143 standard.
5. Packaging
a.) Coils
| Packaging material | Type of packaging | |||
| 1 | 2 | 3 | ||
|
1 |
Banding strap |
X |
X |
X |
|
2 |
Label |
X |
X |
X |
|
3 |
Outside edge protector |
— |
X |
X |
|
4 |
Inside edge protector |
X |
X |
X |
|
5 |
Inside coil protector |
— |
— |
X |
|
6 |
Outside coil protector |
— |
— |
X |
|
7 |
Side protector |
— |
— |
X |
|
8 |
Impregnated paper |
X |
X |
X |
b.) Sheets
| Packaging material |
Type of packaging |
||
| 1 | 2 | ||
|
1 |
Wooden pallet |
X |
X |
|
2 |
Banding strap |
X |
X |
|
3 |
Label |
X |
X |
|
4 |
Edge protector |
— |
X |
|
5 |
Cover plate |
— |
X |
|
6 |
Impregnated paper |
X |
X |